10 POINTS PLS HELP ASAP WILL MARK BRANLIEST
An environmental problem with landfills is
A.
incomplete decomposition.
B.
all of these.
C.
groundwater pollution.
D.
methane production.

Based on its chemical properties, identify the position of each chemical family on the periodic table.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe